A blood test to detects the presence of HLA-B27 on lymphocytes (see also Histocompatibility antigens test). In the past, this test was performed using serum that specifically reacts with HLA-B27 on the cells (known as serologic tissue typing). Newer methods are now available that use genetic testing to identify the type of HLA-B27 in a particular individual. The HLA-B27 gene is designated as HLA-B*2701, HLA-B*2702, etc.

Alternative Names

Human leukocyte antigen B27